(Q61921617)
Statements
HELIOS (English)
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Effect of Roflumilast in COPD Patients Treated With Tiotropium. A 24-week, Double-blind Study With 500 µg Roflumilast Once Daily Versus Placebo. The HELIOS Study (English)
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January 2007
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January 2008
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743
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40 year
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